The tv show "Duck Dynasty" how did they make their "millions" other than the duck call?

The Robertson family, Jase, Kay, Korie, Missy, Phil, Si, and Willie became millionaires by making not only duck calls, but decoys as well.

The mom-and-pop Duck Commander business is a true rags-to-riches story with the family creating a sporting empire through creating top of the line decoys and duck calls from wood they salvage in the swamps of Louisiana.

Season 2 is in full swing with the new episodes airing on Wednesdays at 10:00pm, and taking no prisoners.

Inside TV said that the A&E network series is the most-watched cable TV show on Wednesday nights, taking the highest ratings in the coveted 18 to 29 year old demographic.

FX's American Horror Story is only bringing in 2.6 million viewers, and even though Discovery Channel's Moonshiners is bringing in 3.1 million viewers, Duck Dynasty is pulling in 3.6 million viewers.